Dear STATA lister,
When using the command "append" to combine datasets what to do if the same variables have different alternatives in the different survey editions (as in the example below - 2006=4 answers and 2002=3 answers)? Is it a problem or can be ignored?
Thanks! Edson
use "C:\Documents and Settings\aksd\stata1\dataset2006.dta", clear
ta literacy
for those with codes |
10-17 in column 4 aged |
10years and abov | Freq. Percent Cum.
-------------------------+-----------------------------------
unable to read and write | 6,177 34.56 34.56
able to read only | 896 5.01 39.57
able to read and write | 10,797 60.40 99.97
uses braille | 5 0.03 100.00
-------------------------+-----------------------------------
Total | 17,875 100.00
. use "C:\Documents and Settings\aksd\stata1\2002\dataset2002.dta", clear
. ta literacy
liter | Freq. Percent Cum.
------------+-----------------------------------
1 | 7,670 30.64 30.64
2 | 1,450 5.79 36.43
3 | 15,912 63.57 100.00
------------+-----------------------------------
Total | 25,032 100.00
<<winmail.dat>>
